## how to merge a list of strings with numpy arrays stored in a list

I have a list of numpy arrays and a list of strings. I want to merge strings with the arrays. These are my arrays and strings: arrs=[np.array([[1.,0.,0.], [1.,1.,1.]]), np.array([[4.,4.,4.], [2.,4.,0.]…

## How can I apply np.tensordot ‘along an axis’, e.g. one axis that indicates samples?

Consider two multidimensional arrays, where the first axis in each indicates for example different samples, such that both arrays have the same dimension on this axis, and we want to apply np….

## How to use multiprocessing for a big 3d image stack? python

I have a 3d image stack(4000×2048×2048),I want to do some operation in every sigle 2d array(2048×2048),eg. Gaussian filtering, image enhancement,resize img … import numpy as np from tifffile import …

## How can you find what percentage of a Numpy Array has some value X?

Say I have a numpy array: array = np.array([‘Fe’, ‘Pt’, ‘Ce’, ‘Nd’, ‘Pt’, ‘Fe’, …, ‘Pt’, ‘Ce’, ‘Fe’, ‘Fe’]) Where each entry in the array is either ‘Fe’, ‘Pt’, ‘Ce’, or ‘Nd’. I understand how to …

## How to build a diagonal matrix in python?

I have matrix a which has the shape of [100,100], and matrix b of the same shape [100,100]. They are filled with some values. What I want to do, is to build such diagonal matrixes [[a1,0],[0,b1]] for …

## How do I extract elements from a 2D array using a 2D array of indices?

I am trying to extract elements from a 2 dimensional array, a, and I am using a 2 dimensional array of indices, b , representing x/y coordinates. I have found something similar for a 1D array but I …

## What is the best way to find mid points of 1s groups in a python array consist of ones and zeros?

I have arrays which contain zeros and ones. I want to find the indexes of middle points of each consecutive 1s groups. eg: array = [0,0,0,1,1,1,0,0,1,1,1,1,1,0,0] Then from each consecutive 1s group, …

## Python: how to add columns to a numpy array?

I have an array that looks like the following X array([[ 0.93387437, -0.6063677 , -1.1959038 ], [ 0.53421287, -0.31532495, -1.06524933], [ 0.68792884, 0.34513742, -0.90179775], …..

## Can I use numpy to replace values in an array, rather than generating a new array?

I feel like this can be easily accomplished. I have the following code: my_array = np.zeros(6) min = 0 max = 1 my_array = np.random.uniform(min,max, my_array.shape) print(my_array) I …

## Creating sub arrays from 1D array – Python

I have searched the Internet to try and find a solution and have tried to make my own but can’t seem to figure it out. I need to be able to take a 1D NumPy array and within that array, after every …